Mortar-mixing machine.



No. 662,173. Patented Nov. 20, |900.

D. W. McGRATH.

MORTAR MIXING MACHINE (Application Bled Sept. 7, 1899.)

(No Model.)

UNrrsnn STATES DANIEL W. MGGRATH,

PATENT OFFICE.

OF COLUMBUS, OHIO.

lVlORTAR-IVIIXING MACHINE.

SPECIFICATION forming part of Letters Patent N o. 662,173, dated November 20, 1900.

Application iiled September 7, 1899. Serial No. 729.6962 (No model.)

To all whom t may concern:

Be it known that I, DANIEL W. MOGRATH, a citizen of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have inventedacertain new and useful Improvement in lVIortar-h/Iixing Machines, of which the following is a specification.

My invention relates to the improvement of mortar-mixing machines; and the objects of my invention are to provide a mortar-mixing machine of simple and inexpensive construction and of such arrangement of parts as to admit of its being readily transported from one point to another, to so construct the same as to insure a thorough mixing of the ingredients forming the mortar and to accomplish this in a rapid manner, to provide means for operating the mixer from a shaft at an angle with the main power-transmitting shaft, and to produce other improvements in details of construction and arrangement of parts,which will be more fully pointed out hereinafter. These objects I accomplish in the manner illustrated in the accompanying drawings, in which- Figure l is a side elevation of my improved mixer, showing portions of the side broken away for the purpose of clearness in illustration. Fig. 2 is an enlarged sectional view on line Q3 cc of Fig. l, and Fig. 3 is an enlarged section on line y y of Fig. l.

Similar numerals refer to similar parts throughout the several views.

In carrying out my invention I employ7 an oblong mixing case or trough, such as is indicated at l, this case or trough preferably being formed, as indicated in Fig. 3, with its lower portion of reduced width. The mixingcase is supported, as indicated in the drawings,upon suitable supporting-frames 2,Which rise from transverse-ground cross-pieces 2. Within the case or trough l is journaled longitudinally a spiral mixer and agitator 3, the latter consisting of a longitudinally-arranged shaft provided throughout its length with a comparatively wide spiral flanged, sai'd iiange or thread being recessed or notched at intervals, resulting in the production of curved or spiral blade like projections. Toward the outer or discharging end of the mixer the shaft 3 is journaled in a hanger 5, which depends from a transverse bar 6, which connects the upper sides of the casing l. The casing 1 is open at its outer end, and at its inner end is provided on its upper side with an upwardlyextending hopper 7, which, being provided with flaring sides, is adapted to first receive the material to be mixed and discharge the same into the inner end of the casing; On the inner end of the shaft 3 and on the outer side of the trough or casing I mount a comparatively large sprocket wheel 8, which through the medium of a sprocket-chain 9 is connected with a sprocket-pinion l0, which is carried on a horizontal power-shaft l1. One end of the shaft l1 is journaled in a suitable boxing l2, which is supported upon one of thev transverse fram e-pieces 2f. The outer end of the shaft ll is through the medium of a suitable universal joint 13 connected with a shaft le, to which rotary motion is adapted to be contributed in a desirable manner-such, for instance, as suitable steam, electric, or horsepower mechanism.

In utilizing my improved mechanism the ingredients from which the mortar is to be formed and which it is desired to mix thoroughly are shoveled or otherwise discharged into the open mouth of the hopper 7, from which said mate rial passes downward into the inner end of the trough or casing l, where through the rotary movement of the mixer 3 it is thoroughly mixed and gradually conveyed during the mixing process by the blades or flanges e to the outer end of the casing, from which it is forced by the outward pressure of the mixing-blades. Owing to the employment of the universal joint 13 it is obvious that the mortar-mixer may be arranged at different angles or such angles with the shaft l-t as the space in'which the same is used may render most convenient. i

It will readily be seen that owing to the spirally-arranged blades of the mixer the material within the casing will not only become thoroughly mixed in its progress through the case, but that this material will be carried out and delivered from the casing in proper condition for successful use.

The construction of my improved mixing device is such as to admit of the same being produced at a comparatively low cost and to admit of its being transported from place to place in an ordinary wagon or conveyance.

roo

Having now fully describedmy invention, l said shaft having a mixing-flange spirally arwhat I claim, and desire to secure by Letters ranged thereon and said ange being sepa- Patent, is rated into blade projections at; regular inter- In a mortar-mixing machine, the combinavals and means for impartinga rotary motion 5 tion with a horizontal easing or trough, a to said shafts, substantially as specified.

transverse bar near the rear end of said trough and a shaft-hanger depending within said DANIEL W MOGRATH trough from said bar, of a shaft having one In presence ofend journaled in said hanger and its remain- C. C. SHEPHERD,

lo ing end journaled in one end of the trough, A. L. PHELPS. 

